61 35 085 Removing and installing/replacing control unit/module for left or right seat adjustment (rear Comfort seat)

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IMPORTANT: Read and comply with notes on PROTECTION AGAINST ELECTROSTATIC DISCHARGE (ESD PROTECTION) .

Necessary preliminary tasks:

Disconnect BATTERY EARTH LEAD
Remove THE CENTER ARMREST FOR THE REAR SEAT BACKREST COMPLETELY

NOTE: For purposes of clarity, the following operations are shown in the released state.

Detach cover (1) from Velcro fastener.

Pull cover (1) upwards out of guide from four-bar lever.

Fig 1: Pulling Cover Upwards Out Of Guide From Four-Bar Lever

G08509406

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: For purposes of clarity, graphic shows backrest removed:
Unlock and disconnect all plug connections in marked area.

Installation note: Plug connections are coded against incorrect assembly.

Press control unit against spring and remove towards top.

Fig 2: Disconnecting Plug Connections In Marked Area

G06895118

Courtesy of BMW OF NORTH AMERICA, INC.

NOTE: If the rear Comfort seat is defective :
Partially remove the backrest for the seat on the left or right.

Necessary preliminary tasks:

Remove LEFT OR RIGHT REAR SEAT

Release screw (1).

Installation note: Replace screw (1).

Tightening torque: see 5AZ in 52 25 REAR SEAT, ELECTRIC .

Fig 3: Identifying Rear Seat Backrest Screw

G08509375

Courtesy of BMW OF NORTH AMERICA, INC.

Unscrew nuts (1).

Carefully raise the seat frame (2) in the direction of arrow.

Installation note: Replace nuts (1).

Tightening torque: see 5AZ in 52 25 REAR SEAT, ELECTRIC .

Fig 4: Identifying Nuts And Seat Frame

G06895126

Courtesy of BMW OF NORTH AMERICA, INC.

Fig 5: Raising Seat Frame

G06895120

Courtesy of BMW OF NORTH AMERICA, INC.

Unlock plug connections (1) and disconnect.

Press control unit against spring and feed out.

Fig 6: Identifying Seat Frame With Plug Connections

G06895121

Courtesy of BMW OF NORTH AMERICA, INC.

Installation note: Make sure mounting (1) and retaining tabs (2) of control unit (3) are correctly seated.

Fig 7: Identifying Control Unit With Mount And Retaining Tabs

G06895122

Courtesy of BMW OF NORTH AMERICA, INC.

Replacement:

Carry out vehicle PROGRAMMING/ENCODING .